I'd agree with siz87 callsign hades, though i've never been a platoon commander so it might be a bag of arrse. I've been a platoon sgt and from my experience the bloke in question does a decent job of motivating his blokes and keeping up moral.

I quite enjoyed "Extreme Risk" by Major Chris Hunter.... he discusses his time at Sandhurst, his time as a platoon commander and then he moves into EOD so discusses all the tests involved, the boredom, the excitement etc...

Ive just read that you wanted a realistic portrayal... this might not be the book... but its pretty interesting none the less...